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674 lines
22 KiB
C++
674 lines
22 KiB
C++
//
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// Copyright (c) 2009-2011 Artyom Beilis (Tonkikh)
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BOOST_LOCALE_FORMATTING_HPP_INCLUDED
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#define BOOST_LOCALE_FORMATTING_HPP_INCLUDED
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#include <boost/locale/config.hpp>
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#ifdef BOOST_MSVC
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# pragma warning(push)
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# pragma warning(disable : 4275 4251 4231 4660)
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#endif
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#include <boost/cstdint.hpp>
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#include <boost/locale/time_zone.hpp>
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#include <ostream>
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#include <istream>
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#include <string>
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#include <string.h>
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#include <typeinfo>
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namespace boost {
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namespace locale {
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///
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/// \brief This namespace holds additional formatting
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/// flags that can be set using ios_info.
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///
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namespace flags {
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///
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/// Formatting flags, each one of them has corresponding manipulation
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/// in namespace \a as
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///
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typedef enum {
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posix = 0,
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number = 1,
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currency = 2,
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percent = 3,
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date = 4,
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time = 5,
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datetime = 6,
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strftime = 7,
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spellout = 8,
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ordinal = 9,
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display_flags_mask = 31,
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currency_default = 0 << 5,
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currency_iso = 1 << 5,
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currency_national = 2 << 5,
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currency_flags_mask = 3 << 5,
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time_default = 0 << 7,
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time_short = 1 << 7,
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time_medium = 2 << 7,
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time_long = 3 << 7,
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time_full = 4 << 7,
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time_flags_mask = 7 << 7,
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date_default = 0 << 10,
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date_short = 1 << 10,
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date_medium = 2 << 10,
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date_long = 3 << 10,
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date_full = 4 << 10,
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date_flags_mask = 7 << 10,
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datetime_flags_mask = date_flags_mask | time_flags_mask
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} display_flags_type;
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///
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/// Special string patters that can be used
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/// for text formatting
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///
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typedef enum {
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datetime_pattern, ///< strftime like formatting
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time_zone_id ///< time zone name
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} pattern_type;
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///
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/// Special integer values that can be used for formatting
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///
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typedef enum {
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domain_id ///< Domain code - for message formatting
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} value_type;
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} // flags
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///
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/// \brief This class holds an external data - beyond existing fmtflags that std::ios_base holds
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///
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/// You should almost never create this object directly. Instead, you should access it via ios_info::get(stream_object)
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/// static member function. It automatically creates default formatting data for that stream
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///
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class BOOST_LOCALE_DECL ios_info {
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public:
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/// \cond INTERNAL
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ios_info();
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ios_info(ios_info const &);
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ios_info const &operator=(ios_info const &);
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~ios_info();
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/// \endcond
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///
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/// Get ios_info instance for specific stream object
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///
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static ios_info &get(std::ios_base &ios);
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///
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/// Set a flags that define a way for format data like number, spell, currency etc.
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///
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void display_flags(uint64_t flags);
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///
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/// Set a flags that define how to format currency
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///
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void currency_flags(uint64_t flags);
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///
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/// Set a flags that define how to format date
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///
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void date_flags(uint64_t flags);
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///
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/// Set a flags that define how to format time
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///
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void time_flags(uint64_t flags);
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///
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/// Set a flags that define how to format both date and time
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///
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void datetime_flags(uint64_t flags);
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///
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/// Set special message domain identification
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///
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void domain_id(int);
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///
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/// Set time zone for formatting dates and time
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///
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void time_zone(std::string const &);
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///
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/// Set date/time pattern (strftime like)
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///
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template<typename CharType>
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void date_time_pattern(std::basic_string<CharType> const &str)
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{
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string_set &s = date_time_pattern_set();
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s.set<CharType>(str.c_str());
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}
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///
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/// Get a flags that define a way for format data like number, spell, currency etc.
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///
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uint64_t display_flags() const;
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///
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/// Get a flags that define how to format currency
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///
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uint64_t currency_flags() const;
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///
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/// Get a flags that define how to format date
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///
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uint64_t date_flags() const;
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///
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/// Get a flags that define how to format time
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///
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uint64_t time_flags() const;
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///
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/// Get a flags that define how to format both date and time
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///
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uint64_t datetime_flags() const;
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///
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/// Get special message domain identification
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///
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int domain_id() const;
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///
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/// Get time zone for formatting dates and time
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///
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std::string time_zone() const;
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///
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/// Get date/time pattern (strftime like)
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///
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template<typename CharType>
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std::basic_string<CharType> date_time_pattern() const
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{
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string_set const &s = date_time_pattern_set();
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return s.get<CharType>();
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}
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/// \cond INTERNAL
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void on_imbue();
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/// \endcond
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private:
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class string_set;
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string_set const &date_time_pattern_set() const;
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string_set &date_time_pattern_set();
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class BOOST_LOCALE_DECL string_set {
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public:
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string_set();
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~string_set();
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string_set(string_set const &other);
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string_set const &operator=(string_set const &other);
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void swap(string_set &other);
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template<typename Char>
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void set(Char const *s)
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{
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delete [] ptr;
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ptr = 0;
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type=&typeid(Char);
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Char const *end = s;
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while(*end!=0) end++;
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// if ptr = 0 it does not matter what is value of size
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size = sizeof(Char)*(end - s+1);
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ptr = new char[size];
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memcpy(ptr,s,size);
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}
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template<typename Char>
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std::basic_string<Char> get() const
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{
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if(type==0 || *type!=typeid(Char))
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throw std::bad_cast();
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std::basic_string<Char> result = reinterpret_cast<Char const *>(ptr);
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return result;
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}
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private:
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std::type_info const *type;
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size_t size;
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char *ptr;
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};
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uint64_t flags_;
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int domain_id_;
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std::string time_zone_;
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string_set datetime_;
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struct data;
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data *d;
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};
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///
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/// \brief This namespace includes all manipulators that can be used on IO streams
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///
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namespace as {
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///
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/// \defgroup manipulators I/O Stream manipulators
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///
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/// @{
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///
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///
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/// Format values with "POSIX" or "C" locale. Note, if locale was created with additional non-classic locale then
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/// These numbers may be localized
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///
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inline std::ios_base & posix(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::posix);
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return ios;
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}
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///
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/// Format a number. Note, unlike standard number formatting, integers would be treated like real numbers when std::fixed or
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/// std::scientific manipulators were applied
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///
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inline std::ios_base & number(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::number);
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return ios;
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}
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///
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/// Format currency, number is treated like amount of money
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///
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inline std::ios_base & currency(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::currency);
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return ios;
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}
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///
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/// Format percent, value 0.3 is treated as 30%.
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///
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inline std::ios_base & percent(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::percent);
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return ios;
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}
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///
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/// Format a date, number is treated as POSIX time
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///
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inline std::ios_base & date(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::date);
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return ios;
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}
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///
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/// Format a time, number is treated as POSIX time
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///
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inline std::ios_base & time(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::time);
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return ios;
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}
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///
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/// Format a date and time, number is treated as POSIX time
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///
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inline std::ios_base & datetime(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::datetime);
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return ios;
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}
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///
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/// Create formatted date time, Please note, this manipulator only changes formatting mode,
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/// and not format itself, so you are probably looking for ftime manipulator
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///
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inline std::ios_base & strftime(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::strftime);
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return ios;
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}
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///
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/// Spell the number, like "one hundred and ten"
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///
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inline std::ios_base & spellout(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::spellout);
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return ios;
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}
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///
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/// Write an order of the number like 4th.
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///
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inline std::ios_base & ordinal(std::ios_base & ios)
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{
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ios_info::get(ios).display_flags(flags::ordinal);
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return ios;
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}
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///
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/// Set default currency formatting style -- national, like "$"
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///
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inline std::ios_base & currency_default(std::ios_base & ios)
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{
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ios_info::get(ios).currency_flags(flags::currency_default);
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return ios;
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}
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///
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/// Set ISO currency formatting style, like "USD", (requires ICU >= 4.2)
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///
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inline std::ios_base & currency_iso(std::ios_base & ios)
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{
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ios_info::get(ios).currency_flags(flags::currency_iso);
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return ios;
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}
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///
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/// Set national currency formatting style, like "$"
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///
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inline std::ios_base & currency_national(std::ios_base & ios)
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{
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ios_info::get(ios).currency_flags(flags::currency_national);
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return ios;
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}
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///
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/// set default (medium) time formatting style
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///
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inline std::ios_base & time_default(std::ios_base & ios)
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{
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ios_info::get(ios).time_flags(flags::time_default);
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return ios;
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}
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///
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/// set short time formatting style
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///
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inline std::ios_base & time_short(std::ios_base & ios)
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{
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ios_info::get(ios).time_flags(flags::time_short);
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return ios;
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}
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///
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/// set medium time formatting style
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///
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inline std::ios_base & time_medium(std::ios_base & ios)
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{
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ios_info::get(ios).time_flags(flags::time_medium);
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return ios;
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}
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///
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/// set long time formatting style
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///
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inline std::ios_base & time_long(std::ios_base & ios)
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{
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ios_info::get(ios).time_flags(flags::time_long);
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return ios;
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}
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///
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/// set full time formatting style
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///
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inline std::ios_base & time_full(std::ios_base & ios)
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{
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ios_info::get(ios).time_flags(flags::time_full);
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return ios;
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}
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///
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/// set default (medium) date formatting style
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///
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inline std::ios_base & date_default(std::ios_base & ios)
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{
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ios_info::get(ios).date_flags(flags::date_default);
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return ios;
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}
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///
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/// set short date formatting style
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///
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inline std::ios_base & date_short(std::ios_base & ios)
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{
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ios_info::get(ios).date_flags(flags::date_short);
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return ios;
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}
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///
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/// set medium date formatting style
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///
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inline std::ios_base & date_medium(std::ios_base & ios)
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{
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ios_info::get(ios).date_flags(flags::date_medium);
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return ios;
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}
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///
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/// set long date formatting style
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///
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inline std::ios_base & date_long(std::ios_base & ios)
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{
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ios_info::get(ios).date_flags(flags::date_long);
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return ios;
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}
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///
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/// set full date formatting style
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///
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inline std::ios_base & date_full(std::ios_base & ios)
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{
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ios_info::get(ios).date_flags(flags::date_full);
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return ios;
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}
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/// \cond INTERNAL
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namespace details {
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template<typename CharType>
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struct add_ftime {
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std::basic_string<CharType> ftime;
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void apply(std::basic_ios<CharType> &ios) const
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{
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ios_info::get(ios).date_time_pattern(ftime);
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as::strftime(ios);
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}
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};
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template<typename CharType>
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std::basic_ostream<CharType> &operator<<(std::basic_ostream<CharType> &out,add_ftime<CharType> const &fmt)
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{
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fmt.apply(out);
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return out;
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}
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template<typename CharType>
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std::basic_istream<CharType> &operator>>(std::basic_istream<CharType> &in,add_ftime<CharType> const &fmt)
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{
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fmt.apply(in);
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return in;
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}
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}
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/// \endcond
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///
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/// Set strftime like formatting string
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///
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/// Please note, formatting flags are very similar but not exactly the same as flags for C function strftime.
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/// Differences: some flags as "%e" do not add blanks to fill text up to two spaces, not all flags supported.
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///
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/// Flags:
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/// - "%a" -- Abbreviated weekday (Sun.)
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/// - "%A" -- Full weekday (Sunday)
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/// - "%b" -- Abbreviated month (Jan.)
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/// - "%B" -- Full month (January)
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/// - "%c" -- Locale date-time format. **Note:** prefer using "as::datetime"
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/// - "%d" -- Day of Month [01,31]
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/// - "%e" -- Day of Month [1,31]
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/// - "%h" -- Same as "%b"
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/// - "%H" -- 24 clock hour [00,23]
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/// - "%I" -- 12 clock hour [01,12]
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/// - "%j" -- Day of year [1,366]
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/// - "%m" -- Month [01,12]
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/// - "%M" -- Minute [00,59]
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/// - "%n" -- New Line
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/// - "%p" -- AM/PM in locale representation
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/// - "%r" -- Time with AM/PM, same as "%I:%M:%S %p"
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/// - "%R" -- Same as "%H:%M"
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/// - "%S" -- Second [00,61]
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/// - "%t" -- Tab character
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/// - "%T" -- Same as "%H:%M:%S"
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/// - "%x" -- Local date representation. **Note:** prefer using "as::date"
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/// - "%X" -- Local time representation. **Note:** prefer using "as::time"
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/// - "%y" -- Year [00,99]
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/// - "%Y" -- 4 digits year. (2009)
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/// - "%Z" -- Time Zone
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/// - "%%" -- Percent symbol
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///
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template<typename CharType>
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#ifdef BOOST_LOCALE_DOXYGEN
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unspecified_type
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#else
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details::add_ftime<CharType>
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#endif
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ftime(std::basic_string<CharType> const &format)
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{
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details::add_ftime<CharType> fmt;
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fmt.ftime=format;
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return fmt;
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}
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///
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/// See ftime(std::basic_string<CharType> const &format)
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///
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template<typename CharType>
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#ifdef BOOST_LOCALE_DOXYGEN
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unspecified_type
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#else
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details::add_ftime<CharType>
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#endif
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ftime(CharType const *format)
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{
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details::add_ftime<CharType> fmt;
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fmt.ftime=format;
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return fmt;
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}
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/// \cond INTERNAL
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namespace details {
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struct set_timezone {
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std::string id;
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};
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template<typename CharType>
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|
std::basic_ostream<CharType> &operator<<(std::basic_ostream<CharType> &out,set_timezone const &fmt)
|
|
{
|
|
ios_info::get(out).time_zone(fmt.id);
|
|
return out;
|
|
}
|
|
|
|
template<typename CharType>
|
|
std::basic_istream<CharType> &operator>>(std::basic_istream<CharType> &in,set_timezone const &fmt)
|
|
{
|
|
ios_info::get(in).time_zone(fmt.id);
|
|
return in;
|
|
}
|
|
}
|
|
/// \endcond
|
|
|
|
///
|
|
/// Set GMT time zone to stream
|
|
///
|
|
inline std::ios_base &gmt(std::ios_base &ios)
|
|
{
|
|
ios_info::get(ios).time_zone("GMT");
|
|
return ios;
|
|
}
|
|
|
|
///
|
|
/// Set local time zone to stream
|
|
///
|
|
inline std::ios_base &local_time(std::ios_base &ios)
|
|
{
|
|
ios_info::get(ios).time_zone(time_zone::global());
|
|
return ios;
|
|
}
|
|
|
|
///
|
|
/// Set time zone using \a id
|
|
///
|
|
inline
|
|
#ifdef BOOST_LOCALE_DOXYGEN
|
|
unspecified_type
|
|
#else
|
|
details::set_timezone
|
|
#endif
|
|
time_zone(char const *id)
|
|
{
|
|
details::set_timezone tz;
|
|
tz.id=id;
|
|
return tz;
|
|
}
|
|
|
|
///
|
|
/// Set time zone using \a id
|
|
///
|
|
inline
|
|
#ifdef BOOST_LOCALE_DOXYGEN
|
|
unspecified_type
|
|
#else
|
|
details::set_timezone
|
|
#endif
|
|
time_zone(std::string const &id)
|
|
{
|
|
details::set_timezone tz;
|
|
tz.id=id;
|
|
return tz;
|
|
}
|
|
|
|
|
|
///
|
|
/// @}
|
|
///
|
|
|
|
} // as manipulators
|
|
|
|
} // locale
|
|
} // boost
|
|
|
|
#ifdef BOOST_MSVC
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
|
|
#endif
|
|
// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
|